๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Oxidation of ionic potassium-coal adducts

โœ Scribed by Igor E. Nosyrev; Maja D. Stefanova; Stephan P. Marinov; Lazarin Lazarov

Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
581 KB
Volume
69
Category
Article
ISSN
0016-2361

No coin nor oath required. For personal study only.

โœฆ Synopsis

The behaviour of potassium-graphite intercalation compounds (GIC) and directly prepared potassium-coal adducts (PCA) was studied during their oxidation by oxygen. The reactions were carried out in dry state or after dispersion in a solvating medium. The reaction rate in THF was found to be higher. E.s.r. data showed that the KO, produced in the oxidation process was in the form of a complex in the interlayer space of graphite or inserted between the parallel layers of condensed aromatic nuclei in the case of coal adducts. This state of KO, explains the fact that its e.s.r. signal was registered at room temperature. This work revealed an approach for the mild oxidation of PCA with a view to structural investigation of solubilized coal.

๐Ÿ“œ SIMILAR VOLUMES

The oxidation of coal
The oxidation of coal
โœ Jones, R. E. ;Townend, D. T. A. ๐Ÿ“‚ Article ๐Ÿ“… 1949 ๐Ÿ› Wiley (John Wiley & Sons) โš– 581 KB

The paper draws ancntion to the importance of the part played by peroxidic bodies or active oxygen in the weathering of coal; comparative investigations have been made with both coal and carbon, which are shown to behave similarly. The initial reaction appears to involve chemisorption, which, in th

Further studies of coal oxidation
Further studies of coal oxidation
โœ Carol A. Rhoads; Joseph T. Senftle; Michael M. Coleman; Alan Davis; Paul C. Pain ๐Ÿ“‚ Article ๐Ÿ“… 1983 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 751 KB

The low-temperature oxidation of coal has been investigated by Fourier transform infrared spectroscopy (FT-i.r.). Samples were oxidized at 140 and 60ยฐC for intervals of a few hours to days. These FT-i.r. results were correlated to changes in the thermoplastic properties of the coal measured by a Gie